Locomotive hoist and the like



May 26, 1925.

P. D. IONIDES LOCOHOTIVE HOIST AND THE LIKE 3 Shqets-Sheet 1 Filed Nov. 17 1924 II XIIIISJI 21'. I j l PERI fl May 26, 1925.

P. D. IONIDES LOGOIIOTIVB HOIST AND THE LIKE Filed Now. 17. 1924 3 Sheets-Sheet 2 May 26, 1925. 1,539,491

P. D. IONIDES LOCOIOTIVE HOIST AND THE LIKE Filed Nov. 1 1924 3 Sheets-Sheet 3 Patented May 26, 1925.

UITED STATEEi 1,539,491 ATENT OFFICE.

PHILIP DENIS IONIIDES, OF IPSWICI-I, ENGLAND, ASSIGNOB OF ONE-HALF TO RAN- SOMES & RAPIER LIMITED, OF IPSWICH, ENGLAND, A BRITISH COMPANY.

LOCOMOTIVE HOIST AND THE LIKE.

Application filed. November 17, 1924. Serial No. 750,438.

To aZZ whom it may concern:

Be it known that I, PHILIP DnNIs IoNInEs, a subject of the King of England, and residing at Ipswich, in the county of Suffolk, England, have invented. certain new and use ful Improvements in Locomotive Hoists and the Like, of which the following is a specification.

This invention relates to locomotive hoists and the like and has for its object to provide an apparatus which is of simpler construction than those hitherto proposed.

According to this invention the locomotive hoist comprises vertical standards each carrying a screwthreaded shaft having an independent driving element, the shaft and its driving element being so mounted upon the upper end of this standard that they can be rocked as a unit relatively to the standard.

Preferably each screwthreaded shaft is provided with an independent electric motor the separate motors being connected to a common source of current having a single controller for all the motors, in some cases a separate regulator being provided in the circuit of each individual motor.

Each screwthreaded shaft carries a nut the nuts on each opposite pair of standards being adapted to engage a seating formed near the end of a removable transverse beam and the nut and seating being so shaped that the beam can rock relatively to the nut and quite independently of the standards which do not, hitherto, constitute guides for the beam.

Each of the standards or one pair of standards are conveniently mounted upon' suitable wheels or rollers rendering them mobile and capable of being moved into the correct position for the locomotive whatever the length of the latter and thus enable the standard to be employed at any place where a rigid foundation is obtainable. Further, a yielding connection is conveniently provided between the wheels and the base of the standard so that the standard can automatically seat itself firmly on the ground as soon as it assumes the load.

One construction according to this invention is illustrated by way of example in the accompanying drawings, in which Figure l is an end elevation of the complete apparatus,

Figure 2 is a diagrammatic side elevation showing one pair of mobile standards,

Figure 3 is a side elevation of one mobile standard, v

Figure 4 is a sectional elevation on an enlarged scale showing the support forrthe screwthreaded .shaft and its driving element, 7

Figure 5 is a side elevation showing the upper end of the standard and the lifting beam in section, and

Figure 6 is a diagram showing the electrical connections for the four separate motors constituting a hoist.

In the construction illustrated in Figure 1, mobile standards A are adapted to support a lifting beam B by means of a screwthreaded shaft C suspended from the upper end of each standard. At the upper end of each standard an electric motor D is mounted adapted to drive the screwthreaded shaft C through a worm E and gearing E. The motor shaft and gearing are suspended as a unit from a thrust block 13" which in turn is provided with a gimbal mounting. This comprises a block G supported on trunnions G provided with a V-shaped recess at right angles to the axis of the trunnions. The block F isprovided with a V-shaped projectionon its under sidewhich cooperates with the V-shapedgroove in the block G. The trunnions G are supported in bearings H at the upper ends of the standard so that not only can the shaft-rock within the standard to take up its required alignment but, further, the screwthreaded shaft together with its driving unit can be swung clear of the standard when the lifting beam is to be inserted or removed.

Each shaft carries a nut J which supports the removable lifting beam B. As will be seen from Figures 4 and 5, the nut J is provided with projecting ribs or knife edges K about which a hollow casting L is adapted to rock, the casting in turn being provided with similar knife edges L which engage the beam B. The knife edges K and L are so arranged that the beam B can rock relatively 1 to the screwthreaded shafts and independently of the standards which do not, as hitherto, constitute guides for this beam.

The hoist shown diagrammatically in Figure 2 comprises a pair of fixed standards A and a pair of mobile standards A. Such fixed and one pair of mobile feta M and, as shown in Figure-3, a yielding connection such as springs N is provided between the wheels and the base which is capableiofsustaining the weight of the standard unloaded. As soon, however, as the ands are rovided with Wheels standard is loaded, the springs N yiel'dand" thus allow the base of the standard to seat itself firmly on the ground.

-, If,fas is-preferred, four separate electric motors are used "connected to a common source fcui rent, these motors maybe arranged the manner shown by the dia- Ter -ren s %;Itam in Figure 6. As Will be seen f from It islto'be appreciated that the construcprovided' separate Shunt field re u- Satan details may vary considerably Withdeparting from this inventio i and that the "particular type of self-adjust ng bearing employed. hoth. between the shaft and its standard and bet-ween the beam and the put on thefshaft may be altered to suit requirements. For example, the support for the" shaft may be of theballand s'ockettype and some similar equivalent device adopted for the lifting beam.

Itis to'be understood that the term loco- {motive hoist used a, in the foregoing description and in the following-claims is in tended to cover any equivalent dev ce for lifting the'body or frame of a vehicle relatively, to its'ivheels.

hat I claim as my invention-and desire to secure by IiettersPatent is 1 In a locon otive hoist the combination .offa standard, a rotatable sc'rewthreaded shaft, a drivingelenientfor said shaft, a

the -upper "end ofthe standard seating on and a supporting member for the shaft 'and its driving element so cooperating with 7 said seating that the shaft and ts driving element can rock as a unit relatively to the standard. a j v i In a locomotive hoist the combination of a standard, ayield-ing supporting base ctherefor, a rotatable"screivthreaded shaft, a driving element for said shaft/ya seating on-the: upper end 'of thestand ard' and a supporting member for theshaft and its driving el'ei'iient so cooperating With said seating that the shaft and its'driving 'element can rock as a unit relatively to the standard.

3,. In a locomotive hoist the combination of a'mobile standard, a rotatable screwthreaded shaft, a driving element for said shaft, a seating on the upper end of the standard and a supporting member for the shaft "and its driving element so cooperat ing With said seating that the shaft and its driving element canrockas a unit relatively to the standard. 7

4. In a locomotive-hoist the combination of a mobile standard, supporting heels on the base of said standard, a yielding coniiectioii bet veensaid Wheels and'tlie base of the '"standard, a rotatable screvvthreaded shaft, a driving element for said shaft, 'a seating on the upperend of' the standard and a supportin n embeifor the's'haft and itsd'i'iving element so cooperating with said seating that the shaft and its driving ele- 'nrent can rock as a unit relatively "to the standard;

5. In a 'VIOCOIHOUVG hoist the combination of a pan-of standards, a rotatable screw- 'thi-ea ed shaft suspended from the upper end of each'standard, an independent driv- 7 ing foreach shaft, avnut'carried by each screi'vthread'ed shaft, a transverse beam reinovabl'y connected to each screvvthi'eaded shaft and a seating near each end of the beam adapted so as to cooperate Withthe nut that the beam can rock relatively to the standardsa'iid' relatively to each screwthreaded shaft. i In a loconiotive hoist the'combination of a pair of standards, a seating on the up 'per end of eaclis'tandard, a rotatable screwthreade'd shaft carried by each standard, an independent driving elementfor each shaft,

a support foreach shaft and its driving elenient so cooperating With the seating of the standard that theshaft anddriving element can rock as a unit relatively to the standard, a nut carriedby each screwthi'eaded shaft, a transverse beam removably connected to each screwthreaded shaft and a seating near each end of the beam adapted so to cooperate with the nut'that the beam can rock relatively to each screw threaded shaft.

7 7, In a'locomotive hoist the combination of a pair of standards, a rotatable screwend of each standard, an independent driving element includingja separate electric 'motor formed "as a 'unit ivith each screwthi'eaded shaft, a source of electric current supplying both inotors and a" single controller therefor.

8. In a locomotive hoistth'e combination of apair of,"standards,'a'seating on the uper end of each standard, a rotatables'crevvA threaded shaft carried by each standard,

driving element cooperating with said seatthreadedshaft suspended from the upper ing so that the shaft and its driving element can rock as a unit relatively to the standard, a source of electric current supplying both motors and a. single controller therefor.

9. In a locomotive hoist, the combination of a pair of standards, a rotatable screwthreaded shaft suspended from the upper end of each standard, an independent driving element including a separate electric motor formed as a, unit with each screwthreaded shaft, a source of electric current supplying both motors, a separate regulator in the circuit of each motor and a single controller for both motor circuits.

10. In a locomotive hoist comprising a plurality of standards including a yielding supporting base for one pair of standards, a driving element carried by each standard, a screwthreaded shaft formed as a unit with each driving element and adapted to rock therewith relatively to its supporting standard, an electric motor included in each driving element, a single source of electric current for each motor, a single controller for all the motor circuits, a nut carried by each screwthreaded shaft, a transverse beam removably connected to the screwthreaded shafts in each pair of standards and a seating at the end of each beam adapted so tocooperate with the nuts that the beams can rock relatively to their screwthreaded shafts and independently of the standards.

11. In locomotive hoist the combination with a plurality of pairs of standards of a driving element carried by each standard, a

screwthreaded shaft formed as a unit with each driving element and adapted to rock therewith relatively to its supporting standard, an electric motor included in each driv ing element, a single source of electric current-for each motor, a single controller for all the motor circuits, a separate regulator in the circuit of each motor, a nut carried by each screwthreaded shaft, a transverse beam removably connected to the screwthreaded shafts in each pair of standards and a seating at the end of each beam adapted so to cooperate with the nuts that the beams can rock relatively to their screwthreaded shafts and independently of the standards.

12. In a locomotive hoist the combination of a standard, a gimbal-like seating on the upper end of said standard, a rotatable screwt-hreaded shaft, a driving element for said shaft, a casing for said driving element, and a supporting member on said casing cooperating with the gimbal-like seating so that the shaft and the casing containing the driving element can rock as a single unit relatively to the standard.

13. In a locomotive hoist the combination of a standard, a gimbal-like seating at the upper end of said standard, a rotatable screwthreaded shaft, an electric motor constituting a driving element for said shaft, a casing enclosing said motor, a supporting member on the casing cooperating with the gimbal-like seating so that the shaft and the casing containing the driving element can rock as a single unit relatively to the standard.

14. In a locomotive hoist the combination of a pair of standards, a gimbal-like seating on the upper end of each standard, a rotatable screwthreaded shaft, a driving element for said shaft,,a casing for said driving element, a supporting member on said casing cooperating with the gimbal-like seating so that the shaft and the casing containing the driving element can rock as a single unit relatively to its respective standard, a nut carried by each screwthreaded shaft, a transverse beam removably connected to each shaft and a seating for said nuts at each end of the beam adapted to cooperate with the nuts so as toenable the beam to rock within the standards relatively to the screwthreaded shafts.

In testimony whereof I have signed my name to this specification.

PHILIP DEN IS IONIDES. 

